diff --git a/repos.json.lock b/repos.json.lock
index 7855249ec..49763f0c3 100644
--- a/repos.json.lock
+++ b/repos.json.lock
@@ -1533,8 +1533,8 @@
             "url": "https://github.com/minion3665/nurpkgs"
         },
         "mio": {
-            "rev": "115c60a069d9410bc6913103cef4a237b6fedd4c",
-            "sha256": "02s08wd9wmhq7v84wwkyqz89b5xxh4h2k829i4ypkw973637yf9x",
+            "rev": "12f13d4720f6195a84a448921419f01f9b77b7b5",
+            "sha256": "0llm2vm0gmkkl75lwq1gm24gwhp4mbcvadzbw4ijijb6ifmlmmvq",
             "url": "https://github.com/mio-19/nurpkgs"
         },
         "misterio": {